It certainly took long enough, but spring has finally arrived, much to the delight of moms everywhere! After months of being cooped up inside and longing for the temperatures to warm up, our wait is officially over, and now it's time to get outside and have some fun.

Even though the kids are still in school, we still have afternoons and weekends to look forward to. There are plenty of fun things we can do with them that don't involve the TV, video games, or anything else that takes place in the confines of our homes.

And the best part is that getting some much needed fresh air doesn't have to put a strain on our wallets.

Here are 20 awesome outdoor activities to do you with your kids this spring that won't cost you one cent!